export const singer=state=>state.singer
export const playing=state=>state.playing
export const fullScreen=state=>state.fullScreen
export const playlist=state=>state.playlist
export const sequenceList=state=>state.sequenceList
export const mode=state=>state.mode
export const currentIndex=state=>state.currentIndex
export const currentSong=(state)=>{
    return state.playlist[state.currentIndex]||{}
} 